Race condition in the DOM: Content Processes component. (CVE-2026-92042)
A race condition vulnerability was identified in the DOM Content Processes component of Firefox. This issue was addressed and fixed in Firefox version 156 and Firefox ESR 153.3. The vulnerability is classified with high impact due to its potential security implications. No known exploits are reported in the wild at this time.
AI Analysis
Technical Summary
This vulnerability involves a race condition in the DOM Content Processes component of Firefox. Race conditions can lead to unpredictable behavior and security issues when concurrent processes access shared resources improperly. Mozilla fixed this vulnerability in Firefox 156 and Firefox ESR 153.3 as part of a security update addressing multiple high-impact issues.
Potential Impact
The vendor classifies the impact of this vulnerability as high, indicating it could allow attackers to cause significant security issues such as privilege escalation or other unauthorized actions within the browser environment. However, there are no reports of active exploitation in the wild.
Mitigation Recommendations
A fix is available and has been released by Mozilla. Users should update to Firefox 156 or later, or Firefox ESR 153.3 or later, to remediate this vulnerability. No additional mitigation steps are required beyond applying the official update.
Race condition in the DOM: Content Processes component. (CVE-2026-92042)
Description
A race condition vulnerability was identified in the DOM Content Processes component of Firefox. This issue was addressed and fixed in Firefox version 156 and Firefox ESR 153.3. The vulnerability is classified with high impact due to its potential security implications. No known exploits are reported in the wild at this time.
Affected software
pkg:github/mozilla/firefox-esrRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a race condition in the DOM Content Processes component of Firefox. Race conditions can lead to unpredictable behavior and security issues when concurrent processes access shared resources improperly. Mozilla fixed this vulnerability in Firefox 156 and Firefox ESR 153.3 as part of a security update addressing multiple high-impact issues.
Potential Impact
The vendor classifies the impact of this vulnerability as high, indicating it could allow attackers to cause significant security issues such as privilege escalation or other unauthorized actions within the browser environment. However, there are no reports of active exploitation in the wild.
Mitigation Recommendations
A fix is available and has been released by Mozilla. Users should update to Firefox 156 or later, or Firefox ESR 153.3 or later, to remediate this vulnerability. No additional mitigation steps are required beyond applying the official update.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-9647-52wr-wgmr
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-92042"]
- State
- PUBLISHED
Threat ID: 6aaa081255bf5e2cf5ea4a6b
Added to database: 09/16/2026, 03:08:02 UTC
Last enriched: 09/16/2026, 05:07:18 UTC
Last updated: 09/16/2026, 05:07:19 UTC
Views: 4
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